Storage rack tube bank for freezer room of refrigerator

Abstract

The invention discloses a storage rack tube bank for a freezer room of a refrigerator. The storage rack tube bank comprises a framework; the framework comprises supporting assemblies arranged at two sides; a plurality of layers of beams are connected between the supporting assemblies at two sides; a plurality of bent tube banks are arranged and fixedly arranged on each beam in parallel and at intervals; an upper port of each tube bank is connected with an influent collecting tube assembly, and a lower port of each tube bank is connected with an effluent collecting tube assembly; an inlet in the upper end of each tube bank is provided with a restriction orifice which is fixedly clamped between two flange plates, and the flange plates are respectively fixedly connected with the tube banks; the sections of the tube banks are rectangular; and an inner cavity of each tube bank is filled with a secondary refrigerant connected with a refrigerating device. The storage rack tube bank is simple in structure, the contact area between a tray of a frozen article and the tube bank is large, the freezing effect is good, each tube bank is uniform in liquid supply, and the energy consumption is low.

Description

technical field [0001] The invention relates to a shelving tube used in a quick-freezing room of a cold storage. Background technique [0002] Most of the various cold storages currently under construction are ammonia systems. The quick-freezing rooms generally use shelf pipes or air coolers as evaporators to cool down the cold storage. The liquid supply method is mainly based on the ammonia pump, and the ammonia liquid must enter the quick-freezing room. In this way, there are potential safety hazards, especially in recent years, several leakage and explosion incidents of ammonia cold storage have caused serious casualties and social property losses, which have aroused widespread concern in the society. The amount of ammonia used in the ammonia cold storage system must be limited within a certain range, which also brings certain troubles to the design, construction, and safety maintenance of the ammonia cold storage. [0003] Due to the advantages of large cargo loading ca...

AI Technical Summary

Problems solved by technology

[0005] 2. Rack pipes generally use circular pipes with an outer diameter of Ø38. The flow rate of liquid ammonia in the pipes is very low, less than 0.01m / s. The bubbles evaporated in the pipes are not easily taken away and will gather at the upper part of the pipes. Occupies a part of the space where the ammonia liquid is in contact with the exhaust pipe, and at the same time, the tray and the exhaust pipe are in line contact, which is not conducive to the contact heat exchange with the tray

[0006] 3. There may be uneven liquid separation between the exhaust pipes, and the flow rate of refrigerant liquid in some exhaust pipes is very low, which cannot maximize the effective heat exchange area of ​​the exhaust pipes

[0007] 4. The workload of operation is heavy and heavy, the defrosting is troublesome, and the adaptability to frozen goods is poor

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